list the steps to fill a combobox using a bindingsource. I dragged a bindingsource onto a form, created a datatable and datatableadapter(correct term?), added a query. I tried but I am missing something, my combobox displays System.Data.
View 5 RepliesI have the following:
a table of addresses and a bindingsource for the table
a enum list of address type: 0 = "Mailing", 1 = "Physical", 2 = "Shipping" etc...
I would like to bind the datasource of the combobox to the enum so it displays "Mailing", "Physical" etc. Then I would like to change the bindingsource position of the address table based on the user selection of the combobox.
Here is what I have so far:
cbxAddressName.DataSource = New BindingSource(ApplicationEnums.GetEnumList(GetType(ApplicationEnums.CompanyAddressType)), Nothing)
[Code].....
I have a WinForms applciation, I wrote a function that returns a list of all the controls on the form. The function returns a list of control objects.My target is to fill up a combo box with a list of the control names so that once clicked I set focus to it.So what is the correct code for converting a List(Of Control) to an array of string.
View 2 RepliesFill Combobox with List of Control names
View 5 RepliesI have 2 linked DB tables, Artists and Albums using ArtistID as the primary/foreign key.When I want to add a new Album, I have a new form open and I can fill a combobox with the list of Artists to choose from and edit all the details then save to the database.
However, when I want to edit the Album info, I can't seem to get the Artist associated with the Album, as well as all the rest of the Artists from that table, (in case I need to change the Artist associated with the Album).The information required comes from 2 linked tables, so that's where I'm getting lost.An example of this is when a person edits their profile on a webpage, for instance, a list of countries is usually listed in a combobox and the one selected is the country they selected when filling out the form previously, however, they still have the option to change it.
I have a binding source, a Data Table, a Table Adapter and a combo box. How to fill a combo box using these parts? When I fget done I am Showing System.Data.... Example.JPG
[Code]...
Im using a bindingsource to add new records to my db using bindingsource.addnew()When this is evoked, it seems to automatically increment the recordcount and then blanks out the content of every bound to that tables bindingsource. So that all fields in the new record have to be filled in manually.I would like to be able to pre-fill some of the data in the new record. for instance, when a user adds a new record, have a specific column in the new record automatically populate with the selectedvalue of a combobox.I assume this means I may have to manually code up my own addnew routine, but google has let me down on where to start.
View 3 RepliesIn my form.load event, there is a bindingsource.fill event.After the .fill, there are two or three other lines of code that query the newly filled tablemanager. The code gets the number of total records and displays that number on the form.Here is the problem ....When the .fill statement is executed, control reverts to the form and any statement AFTER the .fill event is not executed.I have tried to stick the remaining lines of code into some other form event with little success. These three lines of code only need to run once.Does anyone have a suggestion as to where to stick these lines?
Private Sub SCDBEditWindow_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load 'TODO: This line of code loads data into the 'SCDBDataDataSet.StampCollection' table. You can move, or remove it, as needed.
[Code]...
I have two comboBoxes, one is CountryCombo and second is StateCombo.What I want is the that when i the clicks country combo and select a one country then the States of that the country should get populated in the State Combo.I have tried things many many many but nothing working. Below is my code of how my CountryCombo is getting filled.
query="select CountryName from CountryMaster"
if dr.hasRows()
{[code]......
How to fill another combobox depending on the value selected from first combobox?
View 2 RepliesI have a custom business object called Customer and a Form1 with a BindingSource1, NumericUpDown1, TextBox1 and ComboBox1 and the attached code. Setting break points in the Property Sets shows that the Set for the ComboBox never fires at all even though the Set for the NumericUpDown and TextBox fire like crazy. [code]
View 1 RepliesI am trying to bind my combobox selected value something like:
Me.combobox1.SelectedValue = Me.BindingSource8.Item("ColumnName")
The column has a numerical value
I'm trying to create a Combobox List and I created the following my first try:
Private Sub ComboBox1_DropButtonClick()
ComboBox1.List = Array("LI-3:comparing and contrasting two or more print sources based on
[code].....
I am loading a series of JPG images into an image list then using that to fill a list view. My program is using ALOT of memory by doing this. What would be the easiest way to add the images but take up less memory/time?
View 3 RepliesThis is what I want to do as seen in C#(loop against a list and fill another list from its data using Linq)
[Code]...
I have a DataRepeater that needs to display individual items from a List (Of T). The missing link between them is a BindingSource component.Everything works fine, i.e., the DataRepeater displays list items correctly, and I can add and delete items, even change using the TextBoxes on the DataRepeater.
The problem is that when I change the value of an item in the code, it doesn't get reflected on the DataRepeater. Only when I click a button on the form which executes this code:myBindingSource.ResetBindings(False)
I've got a BindingSource for a DataSet. I'm fairly new to this whole binding business and databases, and it took me hours to figure out how to use BindingSource to get to an item, because the Row method was not included in the autocomplete. Not to confuse anyone, here's some sample code:[code]The code runs perfectly and does exactly what I want. My problem is the following: When I've typed in source.Item(0)., autocomplete does not display Row in the list. Is this perhaps not the best way to do what I'm doing? Is there a reason it's hidden? Is this a good coding practice to do so? The fact that is wasn't there took me lots of time Googling, so I'm trying to figure out whether it's a Visual Studio glitch or my own.
View 1 RepliesI have a datagridview that is bound to a list object of a custom type via a BindingSource. From everything I've read, I should be able to click the column headers and the rows sort, This doesn't happen for me. Sortmode is set to automatic and the column headers aren't set to be used for selection so it should work.
I know that I could sort progamatticly but that seems a little bit of a waste given that I should just be able to do it by default.
I want to fill the both combobox in this website [URL]
I can fill the main category but I cannot fill the subcategory, I already tried but I cannot.
I would like to fill a textbox with my selected text in combobox. Could you tel me which code I have to add to following code? [Code]
View 3 RepliesOkay so i have set up a database connection and got my combo box to fill from my table but it only fills with the first 4 records even though there are 5. There will be even more records depending on how many bookings are made so i need it to fill with all the records [code]...
View 3 RepliesI am trying to fill a combobox with data from an xml file. I have it setup on form load to call a loadXMLdata function. In the loadXMLdata function it reads the xml file. I would like to know how I would return each of the elements to populate the combobox. I have mostly done php work and in php i could do an array like this: array[book] = "VB.Net Programming". Is there a way to do something like this with an array such as xmlData("Server 1") = "255.255.255.255"
HTML
<config>
<connection>
<servers>
[Code]...
I know there are some things missing in my code like setting the counter integer.
I want to fill a combobox with the values that I have in a datatable. How can I do that? Below is the code for the population of the datatable:
[Code]...
I have 2 comboboxes. When I choose a country in cboLand I want only the states to show in cboStaat that are associated with the country from cboLand. I tried the code below but I get all different error messages. Perhaps you can see something in my code that I missed.
[Code]...
I am creating a form for entering technical data about a part into an Access database. In the same form I have several ComboBoxs that need to have their lists filled from the same reference table in my database. I have a number and unit field for the twist and bending radius properties. I made the unit fields ComboBoxes and I am trying to bind them to referance table in my database called UnitsLength. The relevant structure is as follows....
Form: NewPartForm
Database: CableDataSet
Main Table: PartMechanical - with fields: TwistNom, TwistUnits, BendingRadiusNom, BendingRadiusUnits
Reference Table: UnitsLength - with fields: Unit, Shorthand, Conversion Factor
First tired the following settings....
Data Source: Other Data Sources > NewPartForm List Instances > CableDatase
Display Member: UnitsLength.Shorthand
Value Member: UnitsLength.Unit
SelectedValue: PartMechanicalBindingSource > [The associated unit field]
But the lists didn't populate.... Then I tried these settings
Data Source: UnitsLengthBindingSource
Display Member: Shorthand
Value Member: Unit
SelectedValue: PartMechanicalBindingSource > [The associated unit field]
But now every ComboBox displays the same value but still stores the data in the proper field... it just sets them all the same.
I am having a problem with filling a combobox with unique values.Im not very good at vb either so I will explain what I have done so far.
1. I added a combobox to my form called Combobox1
2. I clicked the little triangle widget thing on the ComboBox1 set the dataset to MyDATASETDataSet1
3. Display Member: CurrencyCountry, Value Member: FCode, Selected Value = None
4. I fill MyDATASETDataSet1 when the form loads using:
PricesTableAdapter.ComboBoxQuery(CurrencY_DATABASEDataSet1.Prices)
ComboBoxQuery =
SELECT DISTINCT [CurrencyCountry], [FCode] FROM [Prices]
The form does not load, i get the error: Failed to enable constraints. One or more rows contain values violating non-null, unique, or foreign-key constraints.If I replace ComboQuery with Fill Query (which is the default fill command) it displays results....but not unique results, i see the same items being repeated throughout the list in the combobox.I guess my questions are:
1. when you fill a dataset do you need to select all the fields when you are creating your query?
2. if i simply wanted to perform the following lookup:
SELECT DISTINCT [CurrencyCountry], [FCode] FROM [Prices]and set the combobox Display Member: CurrencyCountry, Value Member: FCode how would I do this in the code?
3. how can i change my query to display only unique values, distinct doesnt seem to be working?
I'm trying to fill combobox with my SQL query result.[code]...
View 2 RepliesDo any of you know how i can filled the font color in a comobox and then change the color of the text in the textbox?
View 1 RepliesCan someone tell me what's wrong here: Dim sql As String = "SELECT * FROM courses" Dim con As New MySqlConnection Dim dt As New DataTable(sql) Dim cmd As New MySqlCommand(sql, con)
con.Open() ComboBox1.Items.Add(dt)It doesn't show the courses.
I have a form that has three comboboxes in it, cbxStudy, cbxMethod, & cbxAnalyte. When I call the form I load a data table and use that table to fill the comboboxes. I want to assign a value to cbxStudy, then fill cbxMethod by filtering the data table using the value in cbxStudy, then fill cbxAnalyte by filtering the data table using the values in cbxStudy and cbxMethod.
This code keeps failing when the forms New constructor is called, but once the form is loaded the code works great. I indicated below where the code is failing. It's failing because Me.cbxStudy.SelectedValue is = {System.Data.DataRowView} when the constructor is called even though I set the SelectedValue myself.
Public Class frmSelectMethod
Private cv_dt As New DataTable
Private cv_strPrevValue As String
[Code]....